anonymous
  • anonymous
OMG!!!!!!!!!!! HELP PLZZZZZZZZ
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
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anonymous
  • anonymous
@Sepeario
anonymous
  • anonymous
@sweetburger

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anonymous
  • anonymous
@nincompoop
anonymous
  • anonymous
@LunyMoony
anonymous
  • anonymous
@imqwerty
anonymous
  • anonymous
plzzzzz help
anonymous
  • anonymous
hello??????????
Jack1
  • Jack1
for this... u srsly need to flip a coin 50 times and fill in the table from ur results @bubbleslove1234 ... sorry, till u do we cant help u hey
anonymous
  • anonymous
i have already done this
LunyMoony
  • LunyMoony
yeah, I don't understand how they want the statistics either for the 2, or 2 each, of cats and dogs on the chart
Jack1
  • Jack1
so what were ur answers for: HH - HT - TH - and TT? -
anonymous
  • anonymous
hold on
anonymous
  • anonymous
hh=11 ht=17 th=8 tt=14
Jack1
  • Jack1
ok... so from ur screenshot: which question do u want to go through first?
anonymous
  • anonymous
the first one and work from there
Jack1
  • Jack1
k_ so cats are Heads, and Dogs are Tails according to the start of ur Q: having cat or dog is 50:50 "theoretical" probability so: Q1 - theoretical Probability of 2 cats OR 2 dogs = P(HH) OR P(TT) = P(HH) + P(TT) Theoretical probability of HH =0.25 Theoretical probability of TH =0.25 Theoretical probability of HT =0.25 Theoretical probability of TT =0.25 so solve = P(HH) + P(TT) @bubbleslove1234 ?
anonymous
  • anonymous
do you know what i should get cause i am soooooooooooo confused
anonymous
  • anonymous
oww my brain hurts
Jack1
  • Jack1
Theoretical probability is: P(HH) =0.25 (or 25%) P(TH) =0.25 (or 25%) P(HT) =0.25 (or 25%) P(TT) =0.25 (or 25%) so Q1. solve = P(HH) + P(TT)
anonymous
  • anonymous
okay so 25% times 50
Jack1
  • Jack1
no, sorry u can either use percentages or use decimals, but u can't use both at the same time, sorry P(HH) = 0.25 P(TT) = 0.25 so = P(HH) + P(TT) =?
anonymous
  • anonymous
okay
Jack1
  • Jack1
P(HH) = 0.25 P(TT) = 0.25 so P(HH) + P(TT) = ????? @bubbleslove1234 ...?
anonymous
  • anonymous
p(11)=0.25 p(14)=0.25
arindameducationusc
  • arindameducationusc
did you get the Question 1 answer? dog and cat?
anonymous
  • anonymous
nope not yet but i need fast help cause it is due today
Jack1
  • Jack1
no, for question 1, we only care about Theoretical results... not actual one we get from flipping a coin so Theoretical probability of 2 heads is 25% of the time... so P(HH) = 0.25 and the Theoretical probability of 2 tails is 25% of the time... so P(TT) = 0.25 so whats .25 + .25 ?
anonymous
  • anonymous
50
Jack1
  • Jack1
perfect. PHH + PTT = 0.50 .... or 50 % so Q1 = 50% chance
anonymous
  • anonymous
oh so is that the answer
Jack1
  • Jack1
Q1. chance family has 2 cats or 2 dogs? = P(CC) or P(DD) = 0.5 .... or 50% yep, answer
anonymous
  • anonymous
for the first one
Jack1
  • Jack1
Q2. how does 2 coins simulate which 2 pets a family has? answer: 50% chance of choosing a cat or a dog, and they chose twice (50% either cat or dog, then 50% chance either cat or dog for the 2nd pet also) so exactly as flipping a coin... twice (50% either heads or tail, then 50% chance either head or tail on the 2nd toss also)
Jack1
  • Jack1
Q3.check if this is correct: ur results were: |dw:1439454960600:dw|
Jack1
  • Jack1
|dw:1439455108667:dw|
Jack1
  • Jack1
Q4. Experimental Probability In ur test, how many times did u flip the coin? @bubbleslove1234 ?
anonymous
  • anonymous
50
Jack1
  • Jack1
perfect now, calculate your results for P(HH) and P(TT) P(HH) = number of results that were HH / total number of flips =11/50 = what? (in decimals) P(TT) = number of results that were *TT / total number of flips =14/50 = what? (in decimals) @bubbleslove1234 ?
Jack1
  • Jack1
sorry, typo
anonymous
  • anonymous
P(HH) = 0.22 P(TT) =0.28
Jack1
  • Jack1
absolutely right so: Experimental Probability of 2 cats or 2 dogs = same probability as flipping a coin 50 times and getting 2 heads or 2 tails so = P(HH) + P(TT) = 0.22 + 0.28 = ???
anonymous
  • anonymous
0.5
anonymous
  • anonymous
@Jack1
arindameducationusc
  • arindameducationusc
@bubbleslove1234 should I try?
anonymous
  • anonymous
sure
arindameducationusc
  • arindameducationusc
okay for question 1, Dog/Cat 1 1 2 0 0 2 now, in the question its given 2 cats or 2 dogs, so trials are 3, so, its 2/3
Jack1
  • Jack1
sorry my page froze... and is being glitchy can u finish @arindameducationusc please?
arindameducationusc
  • arindameducationusc
okay @Jack1 let me try.........
arindameducationusc
  • arindameducationusc
For question 2, just assign head as dog and tail as cat
anonymous
  • anonymous
kk
arindameducationusc
  • arindameducationusc
now, hh=11 ht=17 th=8 tt=14 if this your data..... then count head head+tail+tail (according to question4 2 dogs and 2 cats) so, 11+14=25 now for probability divide by the frequency, so answer is 25/50
anonymous
  • anonymous
okay
anonymous
  • anonymous
got it
anonymous
  • anonymous
can we move to Q5
arindameducationusc
  • arindameducationusc
yes sure,
anonymous
  • anonymous
thanks
arindameducationusc
  • arindameducationusc
for question 5, C=Cat, D=Dog CCD CDD DDD DCC DDC CCC CDC DCD now, count where CCC and DDD is there which is 2. 2/8 , where 8 is the frequesncy. 2/8 is the probability
Jack1
  • Jack1
hey, back and working, but keep going, happy to watch Q5: perfect, but 1 question: how did u get 2/8 for Q5... but only 2/3 for Q1? should it not be 2/4...?
arindameducationusc
  • arindameducationusc
Q5 and Q1 has no relation (very important)
arindameducationusc
  • arindameducationusc
one sec....
Jack1
  • Jack1
no. categorically: no. Q1 and Q5 are totally related ;)
arindameducationusc
  • arindameducationusc
Q5 is correct.....
arindameducationusc
  • arindameducationusc
but Q1 I missed something.......
anonymous
  • anonymous
what
arindameducationusc
  • arindameducationusc
if D=Dog C=Cat CC DD CD DC so yes it is 2/4. Thank you @Jack1
Jack1
  • Jack1
np dude ;)
arindameducationusc
  • arindameducationusc
Now question 6
anonymous
  • anonymous
kk
arindameducationusc
  • arindameducationusc
H=Head, T=Tail In the table given in Question, replace that with TTH THH HHH HTT HHT TTT THT HTH
anonymous
  • anonymous
???????
anonymous
  • anonymous
what
Jack1
  • Jack1
he means : flip a coin 3 times, and record the results current simulation is; flip a coin 2 times
anonymous
  • anonymous
so what is the answer
Jack1
  • Jack1
1 Attachment
arindameducationusc
  • arindameducationusc
@Jack1 Exactly ! Flipping coins 3 times.... and record observations
anonymous
  • anonymous
only 3 times
Jack1
  • Jack1
flip a coin... 3 times.... record the results... repeat 50 times or flip 3 coins at the same time... 50 times
anonymous
  • anonymous
okay
anonymous
  • anonymous
thanks
arindameducationusc
  • arindameducationusc
Good job @bubbleslove1234 ... Was my attempt useful @bubbleslove1234 ?
anonymous
  • anonymous
yep

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